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Patent Searching and Data


Title:
INFORMATION STORING DEVICE
Document Type and Number:
Japanese Patent JPH0714223
Kind Code:
A
Abstract:

PURPOSE: To obtain an information storing device which can scan a storing medium at a high speed over a wide extent and has a large total information storing capacity, high volumetric information density, and high information transferring speed, small size, and compact constitution.

CONSTITUTION: A probe 7 which is used for recording and reproducing information is positioned against a rotating storing medium 9 by moving the prove 7 in the radial direction of the medium 9. An actuator 5 composed of a spiral bimorph element, or actuator 5 constituted by combining an expandable piezoelectric element 5c and displacement expanding mechanism 5d, or actuator 5 constituted by joining piezoelectric elements 5e in a turned-up or zigzag state) is used as the moving means of the probe 7.


Inventors:
OKUBO TOSHIBUMI
YANAGISAWA KEIICHI
KANEKO REIZO
Application Number:
JP14717593A
Publication Date:
January 17, 1995
Filing Date:
June 18, 1993
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H01J37/28; G01Q10/02; G01Q10/04; G01Q80/00; G11B9/00; G11B9/14; G11B21/02; H01L41/09; (IPC1-7): G11B9/00; G11B21/02; H01J37/28; H01L41/09
Attorney, Agent or Firm:
Dozo Isono